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The effect of copper and ferric sulfates on the corrosion and electrochemical behaviour of titanium in 47N phosphoric acid

✍ Scribed by I. P. Anoshchenko; B. P. Ignatov; G. I. Lukyanova; V. V. Pyaterikov

Publisher
John Wiley and Sons
Year
1974
Tongue
German
Weight
228 KB
Volume
25
Category
Article
ISSN
0947-5117

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✦ Synopsis

Abstract

The influecne of Cu‐ and Fe‐III sulfates has been investigated by potentiodynamic and gravimetric methods. The results show that there are effective (critical) inhibitor concentrations. According to the results obtained both salts inhibit the corrosion of titanium in phosphoric acid at elevated temperatures by passivating the metal. The cathodic process is then facilitated and the anodic potential is increased to values above the passivation potential. Correspondingly, there is no zone of active corrosion in the presence of these salts.

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